PROTEIN S, FREE

Handling: 1 ML PLASMA COLLECTED IN A 3.2% SODIUM CITRATE (LIGHT BLUE-TOP) TUBE. INSTRUCTIONS: DRAW BLOOD IN LIGHT BLUE-TOP TUBE CONTAINING 3.2% SODIUM CITRATE, MIX GENTLY BY INVERTING 3-4 TIMES. CENTRIFUGE 15 MINUTES AT 1500 G WITHIN 1 HOUR OF COLLECTION. USING A PLASTIC PIPETTE, REMOVE PLASMA, TAKING CARE TO AVOID THE WBC/PLATELET BUFFY LAYER AND PLACE INTO A PLASTIC VIAL. CENTRIFUGE A SECOND TIME AND TRANSFER PLATELET-POOR PLASMA INTO A NEW PLASTIC VIAL(S). FREEZE IMMEDIATELY AND TRANSPORT ON DRY ICE., 0.5 ML, FROZEN